What is the speed of light in air?

By Sukrati Saxena|Updated : July 21st, 2022

Speed of light in air is 3 × 108 m/s. The refractive index of air is approximately 1.0003, and to caldulate light the refractive index formula will be used. The speed of visible light in the air is about 90 km/s slower than c. The speed of light in vacuum is c (3 × 108 m/s).

Answer: Speed of light in air is 3 × 108 m/s.

Light is an electromagnetic wave and this can cause sensation of sight in humans. Light has its own speed of traveling and it can travel at a definite speed in a vacuum. The speed of light is slightly slower in the air than in vacuum. It has different speeds in different material media. The speed of light and its properties is studied using the laws of physics.

Summary:

What is the speed of light in air?

Speed of light in air is 3 × 108 m/s. The refractive index of air is approximately 1.0003, and to calculate light the refractive index formula will be used. The speed of visible light in the air is about 90 km/s slower than c.

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